US2223213A

US2223213A - Street ice remover

Info

Publication number: US2223213A
Application number: US339552A
Authority: US
Inventors: Kersten John
Original assignee: Individual
Current assignee: Individual
Priority date: 1940-06-08
Filing date: 1940-06-08
Publication date: 1940-11-26
Anticipated expiration: 1957-11-26

Description

Nav. 26, 1940" J.KERSTEN STREET ICE REMOVER Filed June 8, 1940 2 Sheets-Sheet l INVENTOR Jolm Kersiexz W ATTORNEY Nov. 26, 1940. .1. KERSTEN STREET ICE REMOVER 2 Sheets-:Sheet 2 Filed June 8, 1940 INVENTOR John Kawtem ATTORNEY Patented Nov. 26, 1940 UNITED STATES PATENT OFFICE 12 Claims.

This invention relates to new and useful improvements in a street ice remover.

The invention has for an object the construction of a device as mentioned which is characterized by a drum provided with teeth of a c'ertain shape and adapted to be driven over ice on the roads for the purpose of smoothing out an otherwise extremely rough roadway and removing said roughage up to within about one inch, more or less, of the true road level by one or several times passing over it, depending on the thickness of the ice.

It is contemplated that the drum be large and heavy enough and be rotated at a suitable speed and be installed on a proper vehicle front, center, or back to out clean through an icy, bumpy, frozen street or roadway to make same passable for traflic.

Furthermore,' the invention contemplates an 20 arrangement whereby the drum may be adjusta-bly supported a predetermined distance above the true level of the roadway, varying from about one-half inch to several inches, as selected, and

it is proposed that the supporting means be so arranged that the drum is at all times free to move upwards in the event that a projecting hard object is encountered on the road.

Still further the invention contemplates the association of a plow with) the front of a vehicle provided with the-street ice remover, to assist in removing snow and ice.

Another object of the invention resides in the provision of a rear shield extended, along the length of the drum to catch flying chunks of ice which may be thrown by the rotative drum.

Still further the invention contemplates to characterize the drum by the fact that it is formed with a plurality of dove-tailed grooves extending longitudinally on its periphery, and by 40 the fact that a plurality of blocks are mountedin these grooves and have projecting teeth as before specified.

Still further the invention proposes a novel arrangement by which the teeth on striking the ice on theroad move slightly laterally to further assist in breaking the ice.

For further comprehension of the-invention, and of the objects-and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claims in which the'various novel features of the invention are more particularly set forth.

Fig. 1 is a fragmentary side elevational view of a vehicle equipped with an ice remover constructed in accordance with this invention.

Fig. 2 is an enlarged sectional'view taken on the line 22 of Fig. 1.

Fig. 3 is a fragmentary horizontal sectional view taken on the line 33 of Fig. 2.

Fig. 4 is a fragmentary vertical sectional view taken on the line 4-4 of Fig. 3.

Fig. 5 is a perspective view of one of the blocks with the teeth used in the device.

Fig. 6 is a fragmentary horizontal sectional view taken on the line Ii6 of Fig. 1.

Fig. '7 is a fragmentary enlarged detailed view of a portion of the drum shown in Fig. 1.

The ice remover, in accordance with this invention, includes a pair of spaced arms I 0 and II for pivotal attachment on a vehicle in a manner so as to freely depend. More specifically, these arms are pivotally'supported on a vehicle I2 by a pintle shaft I4 which engages through the rear ends of the arms for pivotally supporting the latter. Adrum I5 is rotatively mounted between the arms III and II. This is accomplished by a shaft I6 passing through and keyed to the drum and mounted upon the said arms. The drum I5 is arranged at a slight inclination so that its left end is slightly forward. The purpose of this arrangement is that as the vehicle travels there will be a tendency for the ice to be pushed towards the right, oif the road.

The drum I5 is provided with a plurality f longitudinally extending dovetailed grooves I'I arranged about the periphery of the drum, preferably at equally spaced positions. Each roove I1 is filled with blocks I8. These blocks are slidably mounted in the grooves. Each block I8 has one or more teeth I9 extending outwards therefrom. These teeth preferably are curved as illustrated in Figs. 1 and 5. The teeth I9 are adapted to engage and strike the ice for breaking the same. The curvature is such as to prevent injury to the road construction.

The drum I5 and shaft IB are connected together with a key I6. .The ends of the shaft I6 are rotatively supported in bearings IIi which are mounted upon the arms In and II. -A means is provided for rotating the drum I5. This means includes a gear fixedly mounted on the shaft I6 and meshing with a gear 2| mounted on a shaft 3I rotatively supported on the arm H. The shaft 3I supports a sprocket wheel 32 which is engaged by a chain 33. This chain extends rearwards and engages over a driver sprocket wheel 34 coaxially mounted on one of the rear wheels.

The arms I0 and I I'are pivotally supported at their rear endsby the pintle shaft I4 coaxial with the sprocket. 34. Hence in all elevated and lowered positions of the front ends of the arms I and l, the chain 33 will maintain a properly taut position.

A raising apparatus is provided for supporting the drum H in various elevated positions. This raising apparatus includes a pair of arms 35 pivotally supported intermediate of their ends on brackets 36 mounted upon portions of the frame of the vehicle |2. The front ends of the arms 35 have projecting pins 31 which engage beneath bottom edge portions of the arms l0 and I The rear ends'of the arms 35 are provided with slots 38. Pins 39 slidably engage in these slots. These pins 39 are turnably mounted upon the ends of a bar 40 extended between the arms 35. Each pin 39 has an inner cylindrical head 39 by which the rotative connection is accomplished.

A screw 4| is threadedly engaged through a socket 42 on a bar 43 mounted across the frame of the vehicle l2. A handle 44 is mounted on the upwards.

The pins 31 lift the arms In and II and so indirectly lift the drum l5. It should be noted that at all times the drum I5 is free to move upwards since the arms l0 and II are merely resting on the pins 31. The weight of the drum maintains the arms Ill and H on the pins 31. When the screw 4| is turned in the other direction, the

front ends of the arms 35 will be moved downwards, and so the drum 5 will be lowered. The arms 35 are pivotally supported on the brackets 36 by pintles 46.

l A rear shield 41 is mounted across the vehicle |2 directly behind the drum l5 and is adapted to catch flying chunks of ice' or other objects which may be thrown up by the revolving drum l5. A snow plow 48 is mounted on the front of the vehicle l2. This plow 48 may be used to push loose chunks of ice to one side of the road.

The operation of the device is as follows:

The handle 44 is adjusted so that the drum I5 is slightly spaced from the true surface of the roadway. The distance may depend on the condition and construction of the roadway. It may vary anywheres from one-half inch to several inches, but this is not intended as a limitation as other distances may be more desirable. The vehicle I2 is driven slowly over the road, and the 'drum I5 is rotated at a rapid rate. The projecting teeth |9 will strike and break up the ice and the drum l5 will move broken pieces of ice to the side of the road. The plow 48 may be used to push the loose ice to the side of the roadway. Should any of the teeth I9 strike a hard object, such as a stone, the drum I5 is free to lift upwards so that the device may pass without damage.

A means'is provided for momentarily shifting the blocks l8 laterally in their extreme bottom positions. This means includes a downward extension Ill -from the arm III. A cam 22 isarranged upon the bottom of the extension Ill and is cooperative with complementary cams 23 7 upon the end blocks I8'of each row of blocks on the adjacent end of the drum I5. These plates have openings through which the cams 23 extend. The blocks l8 are pushed in the direction of the cam 22 by springs 25. These springs are contained in the remote ends of the grooves As the drum l5 rotates the row of blocks l8 at the lowermost position will be moved laterally by its cam 23.striking the stationary cam 22. After the cam 23 passes-the cam 22 the spring 25 of the specific row of blocks I8 will move the blocks l8 back to their original position. The teeth l9 therefore have a double actionto dig into the ice and move laterally to break up the ice formation.

While I have illustrated and described the preferred embodiments of my invention, his to be understood that I do not limit myself to the precise constructions herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent is:

1. A street ice remover, comprising a pair of spaced arms for pivotal attachment on a vehicle to freely depend, a drum rotatively mounted between said arms and having its axis inclined with the left end slightly forwards, a plurality of iongitudinal dovetailed grooves on the periphery of said drum, blocks slidably mounted in said grooves and having projecting teeth for striking ice on the road to break same up, means for rotating said drum, and means for shifting said blocks laterally in their extreme bottom positions.

2. A street ice remover, comprising a pair of spaced arms for pivotal attachment on a vehicle to freely depend, a drum rotatively mounted between said arms and having its axis inclined with the left end slightly forwards, a plurality of longitudinal dovetailed grooves on the periphery of said drum, blocks slidably mounted in said grooves and having projecting teeth for striking ice on the road to break same up, means for rotating said drum, and means for shifting said blocks laterally in their extreme bottom positions, said vehicle being provided with lugs, and said arms being pivotally connected at their rear ends with said lugs.

3. A street ice remover, comprising a pair of spaced arms for pivotal attachment on a vehicle to freely depend, a drum rotatively mounted between said armsand having its axis inclined with the left end slightly forwards, a pluralityof longitudinal dovetailed'grooves on the periphery of said drum, blocks slidably mounted in said grooves and having projecting teeth for striking ice on the road to break same up, meansfor rotating said drum, and means for shifting said blocks laterally in their extreme bottom positions, said drum being provided with a shaft engaging through said arms to accomplish the rotative mounting.

4. A street ice remover, comprising a pair of spaced arms for pivotal attachment on a vehicle to freely depend, a drum rotatively mounted between said arms and having its axis inclined with the left end slightly forwards, a plurality of longitudinal dovetailed grooves on the periphery of said drum, blocks slidably mounted in said grooves and having projecting teeth for striking ice on the road to break same up, means for rotating said drum,' and means for shifting said blocks laterally in their extreme bottom positions, said projecting teeth being curved rearwards.

5. A street ice remover, comprising a pair of spaced arms for pivotal attachment on a vehicle to freely depend, a drum rotatively mounted between said arms and having its axis inclined with the left end slightly forwards, a plurality of longitudinal dovetailed grooves on the periphery of said drum, blocks slidably mounted in said grooves and having projecting teethfor striking ice on the road to break same up, means for rotating said drum, and means for shifting said blocks laterally in their extreme bottom positions, said means for rotating the drum including a driven wheel connected with the drum.

6. A street ice remover, comprising a pair of spaced arms for pivotal attachment on a vehicle to freely depend, a drum rotatively mounted between said arms and having its axis inclined with the left end slightly forwards, a plurality of longitudinal dovetailed grooves on the periphery'of said drum, blocks slidably mounted in said grooves and having projecting teeth for striking ice on the road to break same up, means for rotating said drum, and means for shifting said blocks laterally in their extreme bottom positions, comprising a cam supported from one of said arms and cooperative with cams upon the end blocks of said lines of blocks, and resilient means urging said blocks to engage the cams.

7. A street ice remover, comprising a pair of spaced arms for pivotal attachment on a vehicle to freely depend, a drum rotatively mounted between said arms and havingits axis inclined with the left end slightly forwards, a plurality of longitudinal dovetailed grooves on the periphery of said drum, blocks slidably mounted in said grooves and having projecting teeth for striking ice on the road to break same up, means for rotating said drum, means for shifting said blocks laterally in their extreme bottom positions, and means for supporting said drum in various elevated positions.

8. A street ice remover, comprising a pair of spaced arms for pivotal attachment on a vehicle to freely depend, a drum rotatively mounted be tween said arms and having its axisinclined with the left end slightly forwards, a plurality of Iongitudinal dovetailed grooves on the periphery of said drum, blocks slidably mounted in said grooves and having projecting teeth for striking ice on the road to break same up, means for rotating said drum, means for shifting said blocks laterally in their extreme bottom positions, and means for supporting said drum in various elevated positions, including an arrangement whereby the drum is free to move upwards.

9. A street ice remover, comprising a pair of spaced arms for pivotal attachment on-a vehicle to freely depend, a drum rotatively mounted between said arms and having its axis inclined with the left end slightly forwards, a plurality of lon-.. gitudinal dovetailed grooves on the periphery of said drum, blocks slidably mounted in said grooves and having projecting teeth for striking ice on the road to break same up, means for rotating said drum, means for shifting said blocks laterally in their extreme bottom positions, and means for supporting said drum in various elevated positions, including an arrangement whereby the drum is free to move upwards, and characterized by pins engaging beneath arms supporting the drum, and means for adjusting said pins to various elevated positions.

10. A street ice remover, comprising a pair of spaced arms for pivotal attachment on a vehicle to freely depend, a drum rotatively mounted between said arms and having its axis inclined with the left end slightly forwards, a plurality of longitudinal dovetailed grooves on the periphery of said drum, blocks slidably mounted in said grooves and having projecting teeth for striking ice on the road to break same up, means for rotating said drum, means for shifting saidblocks laterally in their extreme bottom positions,

and a shield to catch flying chunks of ice mounted upon said vehicle directly behind said drum.

11. A street ice remover, comprising a pair of spaced arms for pivotal attachment on a vehicle to freely depend, a drum rotatively mounted between said arms and having its axis inclined with the left end slightly forwards, a pluralitytween said arms and having its axis inclined 4 with the left end slightly forwards, a plurality of longitudinal dovetailed grooves on the periphery of said drum, blocks slidably mounted in said grooves and having projecting teeth for striking ice on the road to break same up, means for rotating said drum, means for shifting said blocks laterally in their extreme bottom position, and a raising apparatus for holding said drum in various elevated positions.

JOHN KERS'IEN;